<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link href="./css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
    <div class="jumbotron">
        <div class="input-group" >
            <input type="text" class="form-control" placeholder="Search for...">
            <span class="input-group-btn">
              <button class="btn btn-default" type="button">Go!</button>
            </span>
        </div>
    </div>
</body>
</html>